EP1217738A3 - Station mobile capable d'exécuter un contrôle automatique de fréquence - Google Patents

Station mobile capable d'exécuter un contrôle automatique de fréquence Download PDF

Info

Publication number
EP1217738A3
EP1217738A3 EP01129278A EP01129278A EP1217738A3 EP 1217738 A3 EP1217738 A3 EP 1217738A3 EP 01129278 A EP01129278 A EP 01129278A EP 01129278 A EP01129278 A EP 01129278A EP 1217738 A3 EP1217738 A3 EP 1217738A3
Authority
EP
European Patent Office
Prior art keywords
control voltage
frequency error
base station
frequency
mobile station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01129278A
Other languages
German (de)
English (en)
Other versions
EP1217738A2 (fr
EP1217738B1 (fr
Inventor
Tomoaki Hokao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Publication of EP1217738A2 publication Critical patent/EP1217738A2/fr
Publication of EP1217738A3 publication Critical patent/EP1217738A3/fr
Application granted granted Critical
Publication of EP1217738B1 publication Critical patent/EP1217738B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control

Landscapes

  • Mobile Radio Communication Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
EP01129278A 2000-12-20 2001-12-12 Station mobile capable d'exécuter un contrôle automatique de fréquence Expired - Lifetime EP1217738B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000387483 2000-12-20
JP2000387483A JP2002190765A (ja) 2000-12-20 2000-12-20 移動端末の周波数制御方式

Publications (3)

Publication Number Publication Date
EP1217738A2 EP1217738A2 (fr) 2002-06-26
EP1217738A3 true EP1217738A3 (fr) 2004-06-16
EP1217738B1 EP1217738B1 (fr) 2007-03-21

Family

ID=18854407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129278A Expired - Lifetime EP1217738B1 (fr) 2000-12-20 2001-12-12 Station mobile capable d'exécuter un contrôle automatique de fréquence

Country Status (6)

Country Link
US (1) US7088974B2 (fr)
EP (1) EP1217738B1 (fr)
JP (1) JP2002190765A (fr)
CN (1) CN1156993C (fr)
DE (1) DE60127374T2 (fr)
HK (1) HK1050089B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002152081A (ja) * 2000-11-07 2002-05-24 Matsushita Electric Ind Co Ltd 受信装置及び受信装置における基準周波数制御方法
JP4449259B2 (ja) 2001-06-19 2010-04-14 日本電気株式会社 Ａｆｃ回路
GB2387506B (en) * 2002-04-12 2005-06-29 Nec Technologies Cellular radio communications device and method of operation
EP1383239A1 (fr) 2002-07-17 2004-01-21 STMicroelectronics N.V. Procédé et dispositif de contrôle automatique de la fréquence dans un récepteur du type DS-CDMA
EP3361643A1 (fr) * 2003-04-01 2018-08-15 NEC Corporation Système de terminal de traitement de données et procédé de transmission et de réception l'utilisant
AU2004202550A1 (en) * 2003-06-18 2005-01-13 Nec Australia Pty Ltd Cell search process for wireless communication system
EP1645033B1 (fr) * 2003-07-02 2015-08-12 Telefonaktiebolaget L M Ericsson (publ) Procede et agencement de synchronisation des frequences d'une station mobile avec une station de base dans un systeme mobile de communication
US7369534B2 (en) * 2003-08-27 2008-05-06 Qualcomm Incorporated Reducing search time using known scrambling code offsets
KR20050106639A (ko) * 2004-05-06 2005-11-11 에스케이 텔레콤주식회사 비동기망과 동기망간의 서비스 전환을 위한 이동통신시스템 및 방법
US7865158B2 (en) * 2005-07-26 2011-01-04 Interdigital Technology Corporation Method and apparatus for automatically correcting receiver oscillator frequency
CN101399577B (zh) * 2007-09-28 2012-09-19 联芯科技有限公司 移动通讯终端及其晶体振荡器参数校准方法
JP5168461B2 (ja) * 2007-10-23 2013-03-21 日本電気株式会社 携帯電話機における再接続時のｔｃｘｏ制御方法及びその方式
US8462875B2 (en) * 2009-07-20 2013-06-11 Mitsubishi Electric Corporation Timing regenerating device
JP2015207876A (ja) * 2014-04-18 2015-11-19 京セラ株式会社 通信装置および通信制御方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5661724A (en) * 1995-12-18 1997-08-26 Ericsson Inc. Satellite diversity scheme
EP0991189A2 (fr) * 1998-10-01 2000-04-05 Nec Corporation Méthode de contrôle automatique de fréquence dans une station mobile lors d'une communication

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3200547B2 (ja) 1995-09-11 2001-08-20 株式会社日立製作所 Ｃｄｍａ方式移動通信システム
JP3226807B2 (ja) 1996-11-20 2001-11-05 静岡日本電気株式会社 無線呼出システム用の自動周波数補正装置および自動周波数補正方法
JP2865086B2 (ja) 1996-11-28 1999-03-08 日本電気株式会社 移動通信端末
US5934329A (en) * 1997-12-01 1999-08-10 Perrone, Jr.; Jerome F. Peeling diaphragm fluid release device
JP3132472B2 (ja) 1998-06-16 2001-02-05 日本電気株式会社 無線局識別装置
JP2000082976A (ja) 1999-06-30 2000-03-21 Hitachi Ltd Ｃｄｍａ方式移動通信システム
JP2001177436A (ja) * 1999-12-15 2001-06-29 Nec Corp 移動通信システムにおけるａｆｃ制御装置及びその方法並びにそれを使用した移動通信機
FI108171B (fi) * 2000-03-24 2001-11-30 Nokia Mobile Phones Ltd Menetelmä sijainnin määrityksen suorittamiseksi ja elektroniikkalaite

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5661724A (en) * 1995-12-18 1997-08-26 Ericsson Inc. Satellite diversity scheme
EP0991189A2 (fr) * 1998-10-01 2000-04-05 Nec Corporation Méthode de contrôle automatique de fréquence dans une station mobile lors d'une communication

Also Published As

Publication number Publication date
EP1217738A2 (fr) 2002-06-26
US7088974B2 (en) 2006-08-08
HK1050089A1 (en) 2003-06-06
DE60127374T2 (de) 2007-11-29
US20020177458A1 (en) 2002-11-28
CN1156993C (zh) 2004-07-07
EP1217738B1 (fr) 2007-03-21
CN1371180A (zh) 2002-09-25
HK1050089B (zh) 2005-03-24
DE60127374D1 (de) 2007-05-03
JP2002190765A (ja) 2002-07-05

Similar Documents

Publication Publication Date Title
EP1217738A3 (fr) Station mobile capable d'exécuter un contrôle automatique de fréquence
US6330446B1 (en) Velocity-based method of controlling registration in mobile communication systems
ES2301885T3 (es) Sistema y metodo para determinar el momento de salir de una red de cobertura de comunicacion inalambrica existente.
US7274727B2 (en) Circuit for detecting a shifted frequency, a method for detecting a shifted frequency and portable communication apparatus
US6556512B1 (en) Mobile terminal for a wireless telecommunication system with accurate real time generation
WO1998051102A3 (fr) Selection de cellule basee sur profil d'usager dans un systeme de radiocommunication cellulaire
CA2269564A1 (fr) Controle dans les systemes cellulaires a acces multiple a repartition par code
SE9500961L (sv) Sätt att bestämma överlämningskandidat i en flercellsmiljö
MY121347A (en) Method and apparatus for automatic channel measurements.
SE9500978L (sv) Sätt att bestämma handover i en flercellsmiljö
CA2308163A1 (fr) Subdivision intelligente de stations de base candidates pour la precision d'un releve de position
EP0851611A3 (fr) Système de communication cellulaire à AMDC
SE9302140D0 (sv) Foerfarande foer lokalisering av mobilstationer i digitalt telenaet
TW200642497A (en) Apparatus and method for cell selection
GB2304259B (en) Radio apparatus suitable for use with an information processor
US6826411B2 (en) Low power interference signal code power (ISCP) measurement
EP1432067A3 (fr) Telephone cellulaire à circuit de commutation pour antenne et procédé pour commutation pour antenne
WO2002047461A3 (fr) Communication multimode sans fil avec affiliation programmee
CN101959207B (zh) 一种邻小区的测量方法和装置
GB2335120A (en) Apparatus for eliminating external interference signals in code division multiple access mobile phone and method therefor
JP2001231067A (ja) 歩数計付き携帯無線通信装置
KR100238529B1 (ko) 시분할 무선단말기의 배터리 전압 표시 방법
US20040110479A1 (en) UMTS-GSM dual mode timing device
AU2001277463A1 (en) Method for detecting traffic data
WO1999057932A3 (fr) Procede de mesure de la synchronisation d'un signal, et systeme radio

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20040512

AKX Designation fees paid

Designated state(s): DE FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60127374

Country of ref document: DE

Date of ref document: 20070503

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20071227

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20141023 AND 20141029

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: LENOVO INNOVATIONS LIMITED (HONG KONG), HK

Effective date: 20141119

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20141208

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20141203

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151212

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20161206

Year of fee payment: 16

Ref country code: GB

Payment date: 20161207

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60127374

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20171212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171212